// -*- Mode: C++ -*-
//
// Copyright (c) 2010 Rice University
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 

// File: CallByValueTraversal.h
//
// Computes call-by-value information for all call sites in the
// program. Fills in both CallByValueInfoAnnotationMap and
// ResolvedCallByValueInfoAnnotationMap.
//
// Author: John Garvin (garvin@cs.rice.edu)

#ifndef CALL_BY_VALUE_TRAVERSAL_H
#define CALL_BY_VALUE_TRAVERSAL_H

namespace RAnnot {

class CallByValueTraversal {
public:
  virtual ~CallByValueTraversal();

  /// instance for singleton pattern
  static CallByValueTraversal * instance();

  /// traverse the procedures in the program and fill in annotations
  void compute();

private:
  /// private constructor for singleton pattern
  explicit CallByValueTraversal();

  static CallByValueTraversal * s_instance;
};

} // end namespace RAnnot

#endif
